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["Max" <>]

Hello Peter,

Thank you very much for you prompt and detailed reply!
I'll test your code addition and post the result asap.

B/Rgds
Max

>Hi Max,
>
>I got this question frequently off late. For this reason I implemented a
>new function. Add the attached file shell_to_nef_3.h to your
>include/CGAL/Nef_3 directory and add the following code to
>Nef_polyhedron_3.h:
>
>Nef_polyhedron_3(const Nef_polyhedron& N,
>                 SFace_const_iterator sf)
>{
>  SNC_structure rsnc;
>  *this = Nef_polyhedron_3(rsnc, new SNC_point_locator_default, false);
>  initialize_infibox_vertices(EMPTY);
>  shell_to_nef_3(N, sf, snc());
>  build_external_structure();
>  simplify();
>  CGAL::Mark_bounded_volumes<Nef_polyhedron_3> mbv(true);
>  delegate(mbv);
>  set_snc(snc());
>}
>
>There is another file attached, which demonstrates the usage. This
>program compares two methods of conversion, an old and simple one with
>the new one. If you don't use CGAL 3.3.1, you won't have the code for
>the old implementation and need to comment/ignore the first part of the
>program. I originally wrote the code to work for closed inner shells,
>but maybe it also works non-closed shells and outer shells. Please tell
>me how it works.
>
>Peter
>
>
>On Thu, 2008-01-17 at 19:18 +0800, Max wrote:
>> Hi all,
>> 
>> I know if a Nef_polyhedron is simple (or, in other words,
>> a manifold), it could be converted to a single polyhedron 
>> with the method: 
>> 
>> Nef_polyhedron::convert_to_Polyhedron ( Polyhedron& P) 
>> 
>> My question is, if N is not a single manifold, but still finite, 
>> is there a way in CGAL to convert it into a group of polyhedra?
>> 
>> Thanks for any help.
>> 
>> B/Rgds
>> Max
>> 
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